The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 2004
Filed:
May. 11, 2000
Antti Lappeteläinen, Espoo, FI;
Visa Tapio Smolander, Helsinki, FI;
Nokia Mobile Phones, Ltd., Espoo, FI;
Abstract
The invention relates to a method in a wireless communication system ( ) comprising wireless terminals (MT -MT ), a communication channel (CH) and at, least one access point (AP , AP ) and access point controller (AC , AC ). The method comprises the steps of activating at least one data transmission connection between the wireless terminal (MT -MT ) and the access point (AP ), in which information is transmitted in packets, forming data frames (FR) for the transmission of the packets, supplementing said data frame (FR) with at least one item of error checking data, in whose formation at least a part of the information contained in the data frame (FR) is used, converting said data frames (FR) into signals to be transmitted on the communication channel, receiving signals transmitted on the communication channel and converting them into data frames, forming reference.data corresponding to at least one item of error checking data on the basis of the information received in the data frame (FR), comparing the received error checking data with said reference data, and setting up an acknowledgement message, in which information on the received parts of the data frame (FR) is transmitted from the device (MT -MT ) receiving the data frames to the device (AP , AP ).